Swimming in Milk

The long economic boom, fueled by easy credit that allowed people to spend money they did not have, led to a huge oversupply of cars, houses and shopping malls, as recent months have made clear. Now, add one more item to the list: an oversupply of cows.

As American dairy farmers increased their shipments of powdered milk, cheese and other dairy ingredients to foreign markets, their incomes rose. And the demand surge helped drive up the price of milk for American families. The national average for whole milk peaked at $3.89 a gallon, or about $1 per liter, in July.

But now, demand for dairy products is stalling amid a global economic slowdown and credit crisis, even as supplies have increased. The result is a glut of milk — and its assorted byproducts, like milk powder, butter and whey proteins — that has led to a precipitous drop in prices. As recession deepens, so does milk surplus .